Stadium: Court 11 Round: 62 Ground: Clay
| ITF - Gdynia M15 | 2021/08/09 08:00 | Illya Beloborodko v Alexander Wolfschmidt | 6-1,6-2 |
| ITF - Grodzisk Mazowiecki M25 | 2021/08/07 10:00 | Illya Beloborodko v Pawel Juszczak | 2-6,3-6 |
| ITF - Grodzisk Mazowiecki M25 | 2021/08/05 14:25 | Pedro Sakamoto v Illya Beloborodko | 4-6,4-6 |
| ITF - Grodzisk Mazowiecki M25 | 2021/08/05 07:00 | Illya Beloborodko v Dawid Taczala | 6-1,6-2 |
| ITF - Poprad M15 | 2021/07/08 10:30 | Illya Beloborodko v Tomas Jirousek | 4-6,0-6 |
| ITF - Poprad M15 | 2021/07/06 07:55 | Illya Beloborodko v Daniel Siniakov | 3-6,7-6,7-5 |
| ITF - Poprad M15 | 2021/07/05 08:00 | Illya Beloborodko v Mateusz Terczyński | 6-4,6-2 |
| ITF - Poprad M15 | 2021/07/04 08:00 | Illya Beloborodko v Piotr Pawlak | 6-0,6-7,10-6 |
| ITF - Gdynia M15 | 2021/08/09 08:00 | Svyatoslav Ilnytskyy v Antonin Bolardt | 4-6,5-7 |
| ITF - Gdynia M15 | 2021/08/08 08:00 | Mikolaj Szmyrgala v Antonin Bolardt | 2-6,2-6 |
| ITF - Most M25 | 2021/05/27 07:55 | Antonin Bolardt v Markus Eriksson | 6-4,6-4 |
| ITF - Most M25 | 2021/05/26 09:35 | Antonin Bolardt v Marek Gengel | 7-6,6-0 |
| ITF - Most M25 | 2021/05/25 10:10 | Antonin Bolardt v Jakub Beran | 6-1,6-1 |
| ITF - Most M25 | 2021/05/24 09:00 | Antonin Bolardt v Mark Havlicek | 6-2,6-2 |
| ITF - Most M25 | 2021/05/23 15:00 | Antonin Stepanek v Antonin Bolardt | 2-6,4-6 |
| ITF - Jablonec Nad Nisou M25 | 2021/05/17 08:30 | Antonin Bolardt v Filip Duda | 0-6,3-6 |